There's long been rumors as to how, exactly, rainbows are made in Equestria. While a great amount of Pegasi ponies are employed in the Rainbow department of the weather factory, almost all of them do the low-end work. What's know is that great streams of Spectra, the individual colours of the rainbow, flow through large grates and into vast vats. From there, workers carefully and equally mix the spectra into the coagulated rainbow pools that dot and run through the factory and surrounding city. Next, that mixture is pumped to the floor below, where other employees atomize it and store it until...